adjective
- untiring; indefatigable: a tireless worker.
adjective
- unable to be tired; indefatigable
adj.1590s, “indefatigable,” from tire (v.) + -less. From 1862 in the sense “without a tire,” from tire (n.). Related: Tirelessly.
adjective
adjective
adj.1590s, “indefatigable,” from tire (v.) + -less. From 1862 in the sense “without a tire,” from tire (n.). Related: Tirelessly.